测绘学报 ›› 2016, Vol. 45 ›› Issue (S1): 144-151.doi: 10.11947/j.AGCS.2016.F018

• 论文 • 上一篇    下一篇

基于六边形格网的城市内涝洪水演进方法研究

赖广陵1, 童晓冲1,2, 张勇1, 丁璐1, 李凯1, 范帅博1   

  1. 1. 信息工程大学地理空间信息学院, 河南 郑州 450001;
    2. 北京师范大学减灾与应急管理研究院, 北京 100875
  • 收稿日期:2016-08-20 修回日期:2016-10-20 出版日期:2016-12-31 发布日期:2017-03-29
  • 通讯作者: 童晓冲 E-mail:txchr@163.com
  • 作者简介:赖广陵(1992-),男,硕士生,主要从事三维数据处理和高分辨卫星图像定位与配准等方面的研究。E-mail:lgl_fly@126.com
  • 基金资助:
    国家自然科学基金(41671409;41201392)

Research on the Method of Urban Waterlogging Flood Routing Based on Hexagonal Grid

LAI Guangling1, TONG Xiaochong1,2, ZHANG Yong1, DING Lu1, LI Kai1, FAN Shuaibo1   

  1. 1. Institute of Surveying and Mapping, Information Engineering University, Henan, Zhengzhou, 450001, China;
    2. Academe of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing, 100875, China
  • Received:2016-08-20 Revised:2016-10-20 Online:2016-12-31 Published:2017-03-29
  • Supported by:
    The National Natural Science Foundation of China (Nos.41671409;41201392)

摘要: 基于六边形格网建模的方式研究城市内涝洪水的演进过程,采用离散格网的方法,建立了一种基于规则多尺度离散格网的城市几何模型,通过三维地形测量数据和二维建筑物矢量数据的融合,形成了规则的地表格网模型,该模型同时考虑了城市地形和建筑等特殊阻拦体。在此基础上,提出了一种逆向的水流推演方法,由洪水的状态反算演进过程,即以洪水的水淹深度为基础,通过与出(排)水口的连通性,计算水淹的范围,由此实现了城市内涝洪水的模拟推演。试验表明,本文方法能够有效地实现城市内涝场景的演进推演,可以为城市防减灾与应急决策提供科学依据。

关键词: 洪水演进, 六边形格网, 体积法, 连通性判断

Abstract: An evolution of the urban waterlogging flood routing was studied in this paper based on the method of hexagonal grid modeling. Using the method of discrete grid, established an urban geometry model on account of the regular multi-scale discrete grid. With the fusion of 3D topographic survey data and 2D building vector data, formed a regular network model of surface. This model took multi special block into account, such as urban terrain and buildings. On this basis, a method of reverse flow deduction was proposed, which was an inverse computation from the state of flood to the evolution process. That is, based on the water depth of flood, made use of the connectivity with the outfall to calculate the range of water logging, and then implemented the urban waterlogging flood simulation deduction. The test indicated that, this method can implement the evolution of urban waterlogging scenario deduction effectively. And the correlational research could provide scientific basis for urban disaster prevention and emergency decision-making.

Key words: flood routing, hexagonal grid, volumetric method, connectivity judgment

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